goof
/gu:f; ɡuf/ n (infml 口)
1 silly or stupid person 傻瓜; 笨蛋.
2 stupid error 愚蠢的错误: Sorry, that was a bit of a goof on my part! 对不起, 那是我的疏忽! goof, v (infml 口 esp US)
1 [I, Tn] fail to do (sth) properly; make a mess (of) 搞糟, 弄坏或弄乱（某事物）
She had a great chance, but she goofed again, ie failed to take the opportunity. 她原有个极好的机会, 可是她又错过了.
The actor goofed his lines. 那演员把台词弄乱了.
2 (phr v) goof about/around/off behave stupidly or irresponsibly; mess around 愚蠢地或不负责任地行事; 乱搞.